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+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
+ ****************************************************************************/
+
+/***************************************************************************
+* Module m_opts *
+* Menus option routines *
+***************************************************************************/
+
+#include "menu.priv.h"
+
+MODULE_ID("$Id: m_opts.c,v 1.12 1999/05/16 17:27:08 juergen Exp $")
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : int set_menu_opts(MENU *menu, Menu_Options opts)
+|
+| Description : Set the options for this menu. If the new settings
+| end up in a change of the geometry of the menu, it
+| will be recalculated. This operation is forbidden if
+| the menu is already posted.
+|
+| Return Values : E_OK - success
+| E_BAD_ARGUMENT - invalid menu options
+| E_POSTED - menu is already posted
++--------------------------------------------------------------------------*/
+int set_menu_opts(MENU * menu, Menu_Options opts)
+{
+ opts &= ALL_MENU_OPTS;
+
+ if (opts & ~ALL_MENU_OPTS)
+ RETURN(E_BAD_ARGUMENT);
+
+ if (menu)
+ {
+ if ( menu->status & _POSTED )
+ RETURN(E_POSTED);
+
+ if ( (opts&O_ROWMAJOR) != (menu->opt&O_ROWMAJOR))
+ {
+ /* we need this only if the layout really changed ... */
+ if (menu->items && menu->items[0])
+ {
+ menu->toprow = 0;
+ menu->curitem = menu->items[0];
+ assert(menu->curitem);
+ set_menu_format( menu, menu->frows, menu->fcols );
+ }
+ }
+
+ menu->opt = opts;
+
+ if (opts & O_ONEVALUE)
+ {
+ ITEM **item;
+
+ if ( ((item=menu->items) != (ITEM**)0) )
+ for(;*item;item++)
+ (*item)->value = FALSE;
+ }
+
+ if (opts & O_SHOWDESC) /* this also changes the geometry */
+ _nc_Calculate_Item_Length_and_Width( menu );
+ }
+ else
+ _nc_Default_Menu.opt = opts;
+
+ RETURN(E_OK);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : int menu_opts_off(MENU *menu, Menu_Options opts)
+|
+| Description : Switch off the options for this menu. If the new settings
+| end up in a change of the geometry of the menu, it
+| will be recalculated. This operation is forbidden if
+| the menu is already posted.
+|
+| Return Values : E_OK - success
+| E_BAD_ARGUMENT - invalid options
+| E_POSTED - menu is already posted
++--------------------------------------------------------------------------*/
+int menu_opts_off(MENU *menu, Menu_Options opts)
+{
+ MENU *cmenu = menu; /* use a copy because set_menu_opts must detect
+ NULL menu itself to adjust its behaviour */
+
+ opts &= ALL_MENU_OPTS;
+ if (opts & ~ALL_MENU_OPTS)
+ RETURN(E_BAD_ARGUMENT);
+ else
+ {
+ Normalize_Menu(cmenu);
+ opts = cmenu->opt & ~opts;
+ return set_menu_opts( menu, opts );
+ }
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : int menu_opts_on(MENU *menu, Menu_Options opts)
+|
+| Description : Switch on the options for this menu. If the new settings
+| end up in a change of the geometry of the menu, it
+| will be recalculated. This operation is forbidden if
+| the menu is already posted.
+|
+| Return Values : E_OK - success
+| E_BAD_ARGUMENT - invalid menu options
+| E_POSTED - menu is already posted
++--------------------------------------------------------------------------*/
+int menu_opts_on(MENU * menu, Menu_Options opts)
+{
+ MENU *cmenu = menu; /* use a copy because set_menu_opts must detect
+ NULL menu itself to adjust its behaviour */
+
+ opts &= ALL_MENU_OPTS;
+ if (opts & ~ALL_MENU_OPTS)
+ RETURN(E_BAD_ARGUMENT);
+ else
+ {
+ Normalize_Menu(cmenu);
+ opts = cmenu->opt | opts;
+ return set_menu_opts(menu, opts);
+ }
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : Menu_Options menu_opts(const MENU *menu)
+|
+| Description : Return the options for this menu.
+|
+| Return Values : Menu options
++--------------------------------------------------------------------------*/
+Menu_Options menu_opts(const MENU *menu)
+{
+ return (ALL_MENU_OPTS & Normalize_Menu( menu )->opt);
+}
+
+/* m_opts.c ends here */